639320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1453}}^1$

素因数の和:1475

約数の個数: 32

約数和(自身を含む): 1570320

約数和(自身を除く): 931000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 1453, 2906, 5812, 7265, 11624, 14530, 15983, 29060, 31966, 58120, 63932, 79915, 127864, 159830, 319660, 639320]

約数ペア:

[(1, 639320), (2, 319660), (4, 159830), (5, 127864), (8, 79915), (10, 63932), (11, 58120), (20, 31966), (22, 29060), (40, 15983), (44, 14530), (55, 11624), (88, 7265), (110, 5812), (220, 2906), (440, 1453)]